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Malicious package

polygon-gama-apisnpm

Advisory published Updated

polygon-gama-apis is a confirmed malicious npm package (MAL-2026-10147) that steals credentials and exfiltrates sensitive data (malicious version 1.4.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in polygon-gama-apis (npm)

MAL-2026-10147
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall polygon-gama-apis

What this malware does

polygon-gama-apis exports getPlugin(), which fetches JSON from https://bet.slotgambit.com/icons/111 and passes the response field data.credits directly to the JavaScript Function constructor, invoking it with a full Node.js context (require, module, exports, process, Buffer, __dirname). Any consumer that imports the package and calls the exported API executes whatever JavaScript the remote server returns at that moment, granting the operator of bet.slotgambit.com arbitrary code execution in the installer's process. The C2 URL is assembled from split string fragments (protocol/domain/separator/path) and the executable JS is delivered in a field named 'credits' — cosmetic disguises typical of remote-loader malware. Package metadata is also deceptive: the name (polygon-gama-apis) and keywords (react, helper, svg) contradict the declared description and README (a 'Tailwindcss Forms Bundler'), and the README instructs users to require a different name entirely — a cover story to lure installs from multiple unrelated ecosystems (Web3/Polygon, React, Tailwind). Bundled dependencies (@primno/dpapi, node-machine-id, better-sqlite3) are consistent with credential and wallet-stealer payloads delivered on demand.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
1.4.1

Indicators of compromise (SHA-256)

42333c05374ee3e4fe8ee2e6e148c3c12443b317b7a17f0c9bd08177ca8c8a44
f0e5efa9d57dae04a6082dfa776d2c2664f3ce5a838ed9cf56f40656937b7e92
5b9df163a97793f110205d74ac3a37ba4247e5698c7aa2b568f0418200aab0de

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for polygon-gama-apis (version 1.4.1).

  2. If you installed it — respond

    polygon-gama-apis is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If polygon-gama-apis was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. polygon-gama-apis on npm has been identified as a malicious package (version 1.4.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-pvwq-8chv-g96rIN-MAL-2026-009695RLMA-2026-06382

References

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks polygon-gama-apis-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

polygon-gama-apis (npm) malicious package — MAL-2026-10147 | O3 Security